I would like to know why when I set my aperture in aperture prioity mode, the camera will only go to a maximum of 320 for a shutter speed. Is there anything I can do to fix this?
Check the Custom Functions - Exposure - Safety Shift setting. Set it to “Disable”.
It was already set to disable.
What is your ISO setting. Try raising the ISO, or setting it to AUTO. Test it outdoors on a sunny day.